The Republicans don't have anyone close to a Reagan to run in 2012 (or 2016, as far as I can see).
Maybe Paul Ryan, someday.
Via Mark Perry.
UPDATE: Interesting comparison between Reagan and Obama by Fouad Ajami:
It was canonical to [the Obama] administration and its functionaries that they were handed a broken nation, that it was theirs to repair, that it was theirs to tax and reshape to their preferences. Yet there was, in 1980, after another landmark election, a leader who had stepped forth in a time of "malaise" at home and weakness abroad: Ronald Reagan. His program was different from Mr. Obama's. His faith in the country was boundless. What he sought was to restore the nation's faith in itself, in its political and economic vitality.
Big as Reagan's mandate was, in two elections, the man was never bigger than his country. There was never narcissism or a bloated sense of personal destiny in him. He gloried in the country, and drew sustenance from its heroic deeds and its capacity for recovery. No political class rode with him to power anxious to lay its hands on the nation's treasure, eager to supplant the forces of the market with its own economic preferences.
To be sure, Reagan faltered midway through his second term—the arms-for-hostages trade, the Iran-Contra affair, nearly wrecked his presidency. But he recovered, the nation rallied around him and carried him across the finish line, his bond with the electorate deep and true. He had two years left of his stewardship, and his political recovery was so miraculous that he, and his first mate, Secretary of State George P. Shultz, would seal the nation's victory in the Cold War.
There is little evidence that the Obama presidency could yet find new vindication, another lease on life. Mr. Obama will mark time, but henceforth he will not define the national agenda. He will not be the repository of its hopes and sentiments. The ambition that his would be a "transformational" presidency—he rightly described Reagan's stewardship in these terms—is for naught.